21357173200700 has 72 divisors (see below), whose sum is σ = 47944320742080. Its totient is φ = 8248089875200.

The previous prime is 21357173200697. The next prime is 21357173200789. The reversal of 21357173200700 is 700237175312.

It is a super-3 number, since 3×21357173200700³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196075454 + ... + 196184346.

It is an arithmetic number, because the mean of its divisors is an integer number (665893343640).

Almost surely, 2^{21357173200700} is an apocalyptic number.

21357173200700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21357173200700 is an abundant number, since it is smaller than the sum of its proper divisors (26587147541380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21357173200700 is a wasteful number, since it uses less digits than its factorization.

21357173200700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176567 (or 176560 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 38.

The spelling of 21357173200700 in words is "twenty-one trillion, three hundred fifty-seven billion, one hundred seventy-three million, two hundred thousand, seven hundred".